As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE CENTER UPPER PANEL CORRODED AT RH APPROX STA. 1182, XCW 8.5 AT 5-21. AFTER FURTHER EVALUATION OF BLENDED OUT AREA AT RH APPROX. STA. 1182, XCW 8.5 AT S-21 BOEING FOUND BLENDED OUT LOCATION ACCEPTABLE AS A PERMANENT REPAIR IAW MD-11 MESSAGE: WGN-WGN-25-0035-4C. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.